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Metallocenophanes, VII . Preparation and Characterisation of the Disilver(I) Complexes of Conjugated Polyenes with [2.2.2]Paracyclophanyl End Groups
Author(s) -
Heirtzler Fenton R.,
Hopf Henning,
Bubenitschek Peter,
Jones Peter G.
Publication year - 1995
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19951281104
Subject(s) - chemistry , polyene , perchlorate , toluene , counterion , crystal structure , stereochemistry , metal , crystallography , organic chemistry , ion
The preparation of the disilver(I) complexes 3 and 4 , polyene metal complexes that are terminally substituted with [2.2.2]paracyclophanyl units, is described. NMR spectro‐scopic studies on the disilver perchlorate complex 3b showed that (a) the sites of complexation are the cyclophane groups and (b) the olefinic spacers do not overly perturb the overall complexation properties of the individual [2.2.2]paracyclo‐phanyl groups. The crystal structures of the disilver hexafluo‐roantimonate complexes 4a–b were determined. The use of the hexafluoroantimonate counterion and solvent mixtures containing toluene both proved crucial in obtaining single crystals; toluene is incorportated into the crystal lattices.